under the wire
在最后一刻；在最后限期之前
口語·強調(diào)勉強趕上截止時間
英文釋義
just in time; narrowly meeting a deadline or completing a task at the last minute
例句
She submitted her assignment just under the wire before the deadline.
典故來源
源自賽馬或賽跑中，選手在終點線（wire）前最后一刻沖過。